Leisure time physical activity and the risk of hip or knee replacement due to primary osteoarthritis: A population based cohort study (The HUNT Study)

Time trends in leisure time physical activity and physical fitness in elderly people: 20 year followup of the Spanish population national health survey (1987-2006)

11 p | 57 | 6

Time trends in leisure time physical activity, smoking, alcohol consumption and body mass index in Danish adults with and without COPD

9 p | 11 | 2

A cross-sectional and 6-year follow-up study of associations between leisure time physical activity and vertebral fracture in adults

10 p | 10 | 1

The impact of work related physical activity and leisure physical activity on the risk and prognosis of neck pain – a population based cohort study on workers

11 p | 12 | 1

Are leisure-time and work-related activities associated with low back pain during pregnancy?

8 p | 8 | 1

Association between device-measured physical activity and lumbar Modic changes

7 p | 11 | 0